About 40 results
https://drivepatents.com/patents/1066460 · 14 Jun 2006
A maximum/minimum voltage detector (4) detects a maximum terminal voltage and a minimum terminal voltage of a plurality of accumulators (CL). A voltage difference calculator (5) calculates a voltage difference between the maximum terminal voltage and the m...
https://drivepatents.com/patents/1067078 · 31 May 2006
A capacitor device is provided which includes a plurality of electric double-layer capacitors connected in series, and a balance resistor portion where five resistors having an equivalent resistance are connected in parallel. In this capacitor device, the ...
https://drivepatents.com/patents/1067345 · 24 May 2006
A device which transfers energy charged in an arbitrary cell among cells (71) from said cell to the input/output terminals of a unit energy storage device (91), comprises a transformer (T1) having a plurality of coils comprising primary (77) switching circ...
https://drivepatents.com/patents/1071340 · 28 Dec 2005
The circuit has voltage-limiting elements, one of which is connected in parallel with each of combinations of energy storage elements. Two voltage-limiting elements are connected in parallel with two energy storage elements connected to two potentials, res...
https://drivepatents.com/patents/1071951 · 7 Dec 2005
A cell balancing circuit monitors the voltage between serially connected cells and compares it to a reference voltage. From that comparison, the cell balancing circuit sources or sinks current into a midpoint node between rechargeable cells to keep the cel...
https://drivepatents.com/patents/1073659 · 28 Sep 2005
A semiconductor apparatus including: multiple parallel monitor circuits each configured to control charge to a capacitor by controlling a transistor that bypasses, if the voltage of the capacitor exceeds a predetermined reference voltage, charge current pr...
https://drivepatents.com/patents/1075960 · 13 Jul 2005
The battery has two modules mounted in series by their terminals, where each module has an electrochemical generator e.g. lithium generator. Compensation circuits are connected to the modules by the terminals, and have two 2-terminal circuits mounted in pa...
https://drivepatents.com/patents/1084159 · 8 Sep 2004
The device has a load calculation module (MC) measuring a voltage of a rechargeable battery (BAT) and determining average voltage by dividing the measured voltage with total number of modules (M1-MN). A load processing unit (ET1) compares voltage of each m...
https://drivepatents.com/patents/1088271 · 7 Apr 2004
Three voltage levels are made available through a source of reference voltage in order to monitor the charging status of capacitors. A capacitor voltage is detected on each capacitor and compared with the three voltage levels. A correct charge for a capaci...
https://drivepatents.com/patents/1090372 · 14 Jan 2004
Four electrochemical modules (1-1,1-2,1-3,1-4) each having electrochemical generators (2) are connected in series to positive and negative terminals. Each module is individually protected by electronic protective circuits (6) of type 1S and also by upstrea...